19487445050505 has 32 divisors (see below), whose sum is σ = 31370516956800. Its totient is φ = 10329953503232.

The previous prime is 19487445050503. The next prime is 19487445050551. The reversal of 19487445050505 is 50505054478491.

It is a cyclic number.

It is not a de Polignac number, because 19487445050505 - 2¹ = 19487445050503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19487445050503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4072584 + ... + 7453913.

It is an arithmetic number, because the mean of its divisors is an integer number (980328654900).

Almost surely, 2^{19487445050505} is an apocalyptic number.

19487445050505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

19487445050505 is a deficient number, since it is larger than the sum of its proper divisors (11883071906295).

19487445050505 is a wasteful number, since it uses less digits than its factorization.

19487445050505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11527193.

The product of its (nonzero) digits is 20160000, while the sum is 57.

The spelling of 19487445050505 in words is "nineteen trillion, four hundred eighty-seven billion, four hundred forty-five million, fifty thousand, five hundred five".